A CBC News investigation into the horse slaughter industry in Canada, including hidden-camera footage from one slaughterhouse in Saskatchewan, is raising questions about how horses are being killed.

The footage, obtained from the Canadian Horse Defence Coalition but shot by an unidentified videographer, documents slaughter practices at Natural Valley Farms in Neudorf, just east of Regina. It appears to show what anti-animal cruelty activists say is the inhumane treatment of horses.

A vet from the Canadian Food Inspection Agency is posted at the plant but doesn't appear on the footage to have done anything to stop the practices.

Many of the horses slated for slaughter are race or workhorses no longer fit for their former jobs, or unwanted pets. The horses are shipped to any one of seven slaughterhouses in Canada from the U.S. The meat is sent to parts of Europe and Asia where it is considered a delicacy.

Horse slaughter businesses in Canada have grown by 75 per cent since laws were passed in the United States in 2006 making it illegal to kill horses for food, according to figures from the Canadian Food Inspection Agency.

It is still legal to ship horses outside the country for slaughter.

John Holland, an engineer from West Virginia, was one of those responsible for getting the slaughter ban passed in the U.S.

"Those people have simply moved over to your border," he told CBC News. "So Canada is basically being used to get around the fact that we don't want our horses slaughtered."

One of the arguments Holland and others used in advocating for the ban on horse slaughter was that it is extremely difficult to slaughter horses humanely.

Experts such as Dr. Temple Grandin, an American professor who has designed dozens of slaughter facilities in the U.S., said it is possible to deliver a humane death if the right slaughter infrastructure is in place.

The key to humane horse slaughter is a stunning box, or kill pen, that is designed specifically for horses and high enough so the animals cannot see over the side in order to contain their large bodies, Grandin said.

Non-slip flooring is also essential.

"Animals panic when they start to slip. People need to be calm. No whistling, no yelling, no hitting and you can do it where they can just walk right in," Grandin, who did not review the hidden-camera footage from Natural Valley Farms in Neudorf, told CBC.

Pens too large, veterinary prof says

A veterinarian who did see the footage said the kill pen being used at Natural Valley was designed for cattle, not horses.

Dr. Nicholas Dodman, a professor of veterinary medicine at Tufts University in Medford, Mass., and a founding member of Veterinarians for Equine Welfare, said the pens at the farm are too large.

He said the pens allow the horses space to move around and back away from the captive bolt operator responsible for shooting them with a device called a captive bolt pistol, sometimes referred to as a bolt or cattle gun, which is used to stun horses before slaughter.

The footage shows the operator is not always able to stun the horses properly to render them fully unconscious before they are slaughtered by slitting of the throat, Dodman said.

The footage also showed horses slipping on the kill pen floor, which appeared extremely slippery.

"Its legs are spinning around; it's like it's on ice. The legs are just spinning around in circles, it's trying to go backwards, it's trying to go forwards — it's just sheer terror, sheer panic," Dodman said of a horse on the videotape.

The Canadian Food Inspection Agency allows for about five per cent of animals to wake up during the slaughter process. But in the worst cases, the horses are incorrectly shot, usually as a result of struggling, Dodman said.

"There are parts of the animal that are still moving that let you know that for at while at least, it's conscious," he said.

Twyla Francois, central region director of the Canadian Horse Defence Coalition, said she is trying to raise awareness among horse owners who don't realize the horses they take to auction could end up at slaughter.

In the 10 to 12 hours of hidden-camera footage she watched, a CFIA inspector was never present at the kill pen, Francois said, despite government regulations that require a vet from the agency be present to oversee the slaughter process at the plant.

Lonesome George

Every now and then George closes his eyes for a few centuries the stars stop for the occasion and the sun goes out, his night lit only by dream...

"Hello, big boy," she says, shell new and lustrous, green as the deep sea; and her eyes deep as the dark gems that glow deep where it roots...

George, lifting his nose skyward still seeing her behind his closed eyes moves forwardslow as lava oozing from the bottom of the sea

His scaled feet arch like trees first planted then pulled up from their roots...

"I'm coming," he says.

Written by, Steve Campbell

"Lonesome George" is the name given by biologists to the last surviving male Giant Galapagos Tortoise. There are no surviving females.

The entire Giant Galapagos Tortoise species was destroyed directly by humans. The tortoise's shells were used to make tourist trinkets. The shell is part of the tortoise's body (like turtles). Without their shell, they die much like a human having their skin removed (I imagine, equally as painful).

The animal was usually still alive when it's 'soft' body was cruelly cut out from it's shell. In countries like China, and the Island of Bali, this brutal and unethical practice of live tortoise/turtle slaughter continues.

George is approximately 90 years old. In 2008, great efforts were made to help George produce offspring by fertilizing eggs of a 'close' relative species. Sadly, the experiment failed.

George is the rarest known creature in the world and... the loneliest.